The Klipsch R-121SW ranks #77 out of 137 total Medium Powered Home Subwoofers (30–75 lbs) for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
#77 Klipsch R-121SW: $239 Amazon
Pros: 12-inch spun-copper driver with 200W RMS delivers controlled, musical bass with minimal distortion. Front-firing design maximizes placement flexibility. Excellent value with exceptional bang-for-buck.
How it compares: Just above it: Paradigm Defiance V12 - $274 more. Just below it: BIC America PL-200II - $184 more.
| CEA-2010-A Average (40-80Hz) | 111.2 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 16.6"H x 16.0"W x 19.7"D (421.6 x 406.4 x 500.4 mm) |
| Driver | 12" (305mm) driver |
| Driver(s) | (1) 12 inch |
| Enclosure | ported, rear |
| Frequency Response | 28-120Hz |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 90.7 dB |
| Output SPL at 20 Hz | 96.0 dB |
| Output SPL at 25 Hz | 98.4 dB |
| Output SPL at 31.5 Hz | 102.3 dB |
| Output SPL at 40 Hz | 108.2 dB |
| Output SPL at 50 Hz | 112.4 dB |
| Output SPL at 63 Hz | 112.9 dB |
| Output SPL at 80 Hz | 111.3 dB |
| Output SPL at 100 Hz | 109.9 dB |
| Output SPL at 125 Hz | 108.3 dB |
| Power Output (Watts) | 200W RMS |
| Warranty | 5/2 |
| Weight | 35.1 lbs / 15.9 kg |
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Product prices and availability were last checked July 28, 2026 at 2:23 PM UTC and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.